Wireless Doorbell with Intercom, Wireless Intercom System 4900ft Long Range Waterproof Doorbell Intercom with Rechargeable Battery for House Classroom Business(Black)

Ultra-long battery life: The wireless doorbell chime has a built-in 1800 mAh large-capacity battery. The outdoor unit can be used for about 6 months after being fully charged. The indoor unit is equipped with a charging base. It is recommended to keep it charged to avoid missing visitors due to low power. In addition, the door bell has excellent sound quality and provides 3 volume levels and 20 ringtones. falseIP44 waterproof: The working temperature of the intercom doorbell is -4°F~140°F-20~60, and the doorbell body is waterproof, so it can be used regardless of whether it is sunny, rainy or snowy. falseFlexible expansion: The indoor unit can be connected to multiple outdoor units, and vice versa. The indoor units can communicate with each other and be used as intercoms.
Note: The indoor unit cannot actively call the outdoor unit. The outdoor unit must call the indoor unit before the intercom conversation can be made. false-
Easy to use: Our door bell ringer wireless has been pre-paired before shipment. After receiving and fully charging the product, just place the long range doorbell wireless where you want it to start using it.
- Ultra-long distance: The communication range of the wireless doorbells for home in an open area can reach 4900ft/1500m, The actual distance depends on the obstruction of the current environment. The 2 way intercom system uses a special key matching technology and 3 switchable channels to avoid signal interference.
- Ultra-long battery life: The wireless doorbell chime has a built-in 1800 mAh large-capacity battery. The outdoor unit can be used for about 6 months after being fully charged. The indoor unit is equipped with a charging base. It is recommended to keep it charged to avoid missing visitors due to low power. In addition, the door bell has excellent sound quality and provides 3 volume levels and 20 ringtones.
- IP44 waterproof: The working temperature of the intercom doorbell is -4°F~140°F-20~60, and the doorbell body is waterproof, so it can be used regardless of whether it is sunny, rainy or snowy.
- Flexible expansion: The indoor unit can be connected to multiple outdoor units, and vice versa. The indoor units can communicate with each other and be used as intercoms.
Note: The indoor unit cannot actively call the outdoor unit. The outdoor unit must call the indoor unit before the intercom conversation can be made.
- Note: If you have any questions, please contact us, and we will provide you with satisfactory and thoughtful servic